HOUSTON — Police are searching for a man accused of attacking a clerk during a convenience store robbery in Greenspoint, authorities said.

Investigators said an employee was working at a store in the 17500 block of Imperial Valley Drive when a man — known to many in the community as “Bird” — walked into the store posing as a customer. He then approached the victim and sprayed his eyes with an unknown substance, officers said.

Afterwards, he went behind the service counter and took money from the cash register before leaving on foot, investigators said.

Officers described the assailant as being in his early to late 20s, around 5 feet 9 inches to 5 feet 11 inches tall and weighing 180 to 200 pounds.

Anyone with information related to the robbery is asked to call Crime Stoppers of Houston at 713-222-TIPS (8477). The agency is offering a reward of up to $5,000 for tips leading to an arrest or charge.